Why should selling out your country have any statute of limitations?
What is the statute of limitations on fraud to the IRS?
If I cheated on my taxes seven years ago, do I still have to worry about it?
Treason does not have a statute of limitations, is my understanding. However, it is typically only awarded at a time of war, or when the support of a foreign enemy is grave in nature. Clinton might qualify for that, and we should try to make the case, I just wouldn't count on it.